共犯者 means “accomplice” or “co-conspirator,” someone who shares responsibility for a wrongdoing. It combines 共 (together) and 犯者 (offender), making its meaning especially memorable.
In the song, the line 「僕らは全員共犯者だった」 means “We were all accomplices.” It is used metaphorically to suggest that everyone shared responsibility for the painful love and tragic outcome, giving the word a dramatic emotional weight.
Natori's "セレナーデ" (Serenade) is a love song sung by someone who has decided they are the problem. The narrator is stuck in place: "ここから動けない" (I can't move from here), with a future that "ずっと 止まったままでいた" (has stayed frozen all this time). Then comes the chorus, which is a strange, sad kind of serenade. Instead of asking to be loved back, the singer begs "僕に触れないで!" (don't touch me!) and wishes the other person "僕なしで上手く幸せになってね" (be happy, and do it well, without me). It even asks for punishment: "罰をください" (give me punishment). That is a lot, and the song knows it.
The second verse turns almost theatrical. Life is "シナリオ通りのコメディ" (a comedy that follows the script), and the line "不幸自慢はハウメニー?" (how many in the misery-bragging contest?) mixes Japanese with the English "how many" written in katakana as ハウメニー. 不幸自慢 is a handy word: bragging about how unlucky you are. The narrator even admits "僕らは 全員共犯者だった" (we were all accomplices).
For learners: the bridge is a great drill. "あと 何回数えたら" (how many more times do I have to count), "あと 何回傷つけば" (how many more times do I have to get hurt), and so on, all lead to "この思いは満たされる?" (will this feeling ever be filled?). Watch the conditional endings change: たら, ば, えば. And the closing promise, "願い疲れても歌うよ" (even if I'm tired of wishing, I'll sing), uses ても for "even if", which you will hear everywhere in Japanese songs.
natori, who writes his name in lowercase, began posting song demos on TikTok in May 2021, and by the middle of 2022 he had shared more than thirty short versions of songs there. He was born in 2003 and is signed to Sony Music Labels.
His breakout was Overdose, released as a single in September 2022, which went past 200 million streams and reached number 4 on the Billboard Japan Hot 100. He has written anime themes, including Absolute Zero for Wind Breaker, and released his first album, Theater, in December 2023, followed by The Abyss in January 2026.