1. 失ったりして初めて 犯した罪を知る

Romaji: ushinattari shite hajimete / okashita tsumi o shiru

Cultural Nuance: "It's only after losing something that you finally realize the wrong you've done."

🗣 Japanese Insight: The word tsumi (罪), meaning "sin," "guilt," or "wrongdoing," is not necessarily limited here to a crime in the legal sense. Trust, relationships, time — the irreversible loss of any of these can become the moment when someone finally realizes the weight of what they have done.

The construction ~shite hajimete ("only after doing ~") is extremely common in Japanese and emphasizes a delayed realization — becoming aware of something only after it is already too late. Given the drama's central theme of enzai (冤罪, "wrongful conviction"), this line can also resonate with both sides of the idea of guilt: someone who has committed a wrong and someone who has been wrongly blamed for one.

2. 真っ新に生まれ変わって 人生一から始めようが

Romaji: massara ni umarekawatte / jinsei ichi kara hajimeyō ga

Cultural Nuance: "Even if I were reborn completely new, and started life all over again from zero."

🗣 Japanese Insight: Massara (真っ新) describes something entirely unused — a state that has not yet been touched or marked by anything. The word echoes the imagery carried by the title hakujitsu itself.

Both massara (真っ新) and masshiro (真っ白, "pure white") begin with the intensifying prefix ma- (真っ-), which strengthens the meaning of the word that follows. The same pattern appears in words such as makkuro (真っ黒, "pitch black") and massugu (真っ直ぐ, "perfectly straight"). By repeating this ma- sound across the lyrics, the song reinforces its longing for a completely pure or untouched state not only through meaning, but through sound as well.

Worth noting here is the grammatical ending ~yō ga, which expresses a concessive hypothetical — roughly, "even if." But it carries more than simple hypothesis: it implies that no matter what condition is imagined, reality will not change. In other words, this line appears to voice a wish to be reborn, while at the same time already conceding that the wish cannot come true — a quietly twisted piece of phrasing. Complete rebirth remains only a fantasy; hakujitsu exists only as a wish, never as an achieved state. That sense sits at the heart of the song.

3. 真っ白に全てさよなら

Romaji: masshiro ni subete sayōnara

Cultural Nuance: "I want to turn everything pure white, and say goodbye to it all."

🗣 Japanese Insight: The image of masshiro ("pure white") echoes the "winter" and "snow" imagery that runs throughout the song, evoking associations of purity and innocence. The wish to erase everything, to paint it all white, appears to be condensed into this single word: sayōnara.

At the same time, this "goodbye" may not read as a clean, final break. The surrounding lyrics — "I can't go back to how things used to be," "even if I find myself envying [what was]" — repeatedly describe someone still tethered to lingering attachment, and this suggests that even as the speaker bids farewell, they haven't fully let go emotionally. Wanting to turn everything white, yet unable to truly erase it — this contradiction, running through the entire song, feels condensed into this brief line.

4. 曖昧なサインを見落として 途方のない間違い探し

Romaji: aimai na sain o miotoshite / tohō no nai machigai sagashi

Cultural Nuance: "Overlooking vague signs, still caught in an endless search for what went wrong."

🗣 Japanese Insight: The phrase "vague signs" (aimai na sain) seems to symbolize the kind of unspoken message that plays a large role in Japanese communication. In many everyday interactions between Japanese speakers, there is an underlying expectation that one will sassuru — sense or intuit — feelings and intentions that are never directly put into words. Read this way, the line seems to depict regret over having failed to sense something that was never explicitly said.

Tohō mo nai (途方もない) describes something that far exceeds ordinary scale or expectation — something enormous, overwhelming, or beyond reasonable bounds. Used here in tohō no nai machigai sagashi (途方のない間違い探し), the phrase doesn't simply describe searching for a mistake; it suggests that this repetitive self-questioning has grown overwhelmingly large and seemingly without end.

Tsuneta has stated, in a post on his official X account, that the deaths of two friends from his hometown in close succession had a strong effect on his songwriting at the time. In light of that statement, it's possible this line carries a personal undertone of regret for a lost friend — the thought that "maybe, if I'd noticed the signs, I could have done something." However, Tsuneta has not been confirmed to have directly connected this specific line to the loss of his friends, so this connection should be understood as an interpretation drawn from the lyrics and his public statement, rather than as a confirmed fact.

5. 首の皮一枚繋がった どうしようも無い今を 生きていくんだ

Romaji: kubi no kawa ichimai tsunagatta / dō shiyō mo nai ima o / ikiteiku nda

Cultural Nuance: "Barely holding on by a thread, I'll keep living through this present I can do nothing about."

🗣 Japanese Insight: Kubi no kawa ichimai tsunagatta (首の皮一枚繋がった) is a Japanese idiom meaning "barely hanging on, just barely surviving." Taken literally, it evokes a rather visceral image — a neck that's nearly severed, held together by nothing but a single layer of skin — and the phrase is used to describe a genuinely critical situation: something on the verge of ending completely, but just barely still holding together.

What stands out in this line is that what's being depicted doesn't read as a hopeful rebirth, but rather as an acceptance of reality — however undignified, however impossible the situation, life continues anyway. The forceful, declarative ending ikiteiku nda ("I will live on") reads less like an optimistic resolution and more like a quiet resolve born from having no other option — a line that seems to embody the understated strength running through the entire song.

6. いつだって人は鈍感だもの わかりゃしないんだ肚の中

Romaji: itsudatte hito wa donkan da mono / wakarya shinai nda hara no naka

Cultural Nuance: "People are always insensitive — there's no way to really know what's in someone's heart."

🗣 Japanese Insight: The character 肚 (hara) carries a nuance distinct from the more commonly used 腹 (also read hara). While 腹 commonly refers to the physical belly or abdomen, 肚 can evoke a person's innermost thoughts, resolve, or emotional core. This is reflected in expressions like hara o kimeru (肚を決める, "to steel one's resolve"), where the word carries connotations of inner strength and determination. The deliberate choice of 肚 rather than the more ordinary 腹 in this lyric gives the phrase a deeper sense of what lies inside a person's mind and heart.

The colloquial contraction wakarya shinai nda is also worth noting — a casual shortening of wakari wa shinai nda ("there's just no way of knowing"). The phrasing carries both resignation and a certain offhand, almost detached familiarity. That people remain insensitive to one another, that no one can ever fully understand what's truly in another person's heart — this line seems to carry a resigned view of human relationships that runs through the song as a whole.

7. 取り返しのつかない過ちの 一つや二つくらい 誰にでもあるよな

Romaji: torikaeshi no tsukanai ayamachi no / hitotsu ya futatsu kurai / dare ni demo aru yo na

Cultural Nuance: "Everyone's got a mistake or two they can never take back."

🗣 Japanese Insight: Torikaeshi ga tsukanai (取り返しがつかない) means that something which has already happened — a mistake already made — can never be undone or restored to how it was before. The word torikaeshi originally means "to take something back" or "to recover it," and combined with the negative tsukanai ("cannot be done"), the phrase produces the weighty sense of "there's no longer any way to fix this."

At the same time, hitotsu ya futatsu kurai ("about one or two") conveys a sense of "not many, maybe, but surely at least one or two" — naming a small, specific number for something serious, which seems to soften the weight of the admission while still accepting it.

And the closing dare ni demo aru yo na ("everyone's got them, right?") lands less as a flat statement than as a spoken-style, almost rhetorical question — directed as much at the speaker as at the listener. Carrying regret without treating it as something exceptional, choosing instead to accept it as ordinary — this line seems to condense the resignation and quiet self-forgiveness that runs through the whole of "Hakujitsu."

🎤 Emotional Summary

"Hakujitsu" is a song about someone carrying regret, insensitivity, and missed connection — and continuing to live through a present they can do nothing to change.

People make mistakes. They overlook the signs. They do things that can never be undone. And still — complete rebirth remains out of reach; barely holding on, they keep trying to understand someone else, and keep living on even without ever truly being understood in return.

Though the song carries the weight of a drama built around wrongful conviction, what it ultimately portrays isn't the story of any one particular person — it speaks to a feeling shared by many who carry the weight of their own mistakes while continuing to live. That quiet resolve, and that quiet resignation, are what give "Hakujitsu" its depth — and its distinctly Japanese emotional resonance.

📚 Sources & References

• Daiki Tsuneta, official X (Twitter) post (comment shared at the release of the "Hakujitsu" music video)

• Related coverage of King Gnu Satoru Iguchi no All Night Nippon 0 (Nippon Broadcasting System)

• fashion-press.net, interview feature with Daiki Tsuneta

• rockinon.com, news article referencing the making of the music video