@onefive’s New Song “Vanilla Latte” Becomes the Ending Theme for a TV Tokyo Drama

Article

@onefive's next single isn't just a new song — it's about to be the sound that closes out a TV Tokyo drama every week.

The Song and the Drama

"Vanilla Latte" (バニララテ) gets its digital release on October 8, 2026. It was written specifically as the ending theme for TV Tokyo's drama series "How to Build a Doting Boyfriend — The Story of a Girl Who Goes From Fling to The One" (溺愛カレシの作り方～セから本命になる女の子の話～), which begins airing October 7 — meaning the drama actually starts before the song's own release date.

What the Song Is About

The song is written from the perspective of a girl whose feelings for someone keep growing. The official description calls it cute with a slightly "menhera" edge — a term used in Japan for an emotionally intense, slightly unstable romantic vibe, played here for character rather than as a diagnosis.

Also Announced the Same Day

September 25 also brought visual and ticket updates for @onefive's Zepp Tour 2026, titled "Serolla Latte" — putting a new song, a drama tie-in, and touring news in front of fans within the same news cycle.

Fan Perspective

For fans following @onefive across idol lives, pop releases, and now television, a drama ending theme is one more sign of the group moving between different corners of Japanese entertainment rather than staying in one lane.

What To Know

A new song paired with a TV drama tie-in moves @onefive beyond the live-idol circuit and puts their music in front of a drama-watching audience that might not already follow the group.

TV drama theme songs remain an important route for Japanese artists to reach audiences outside their existing fan base — a drama ending slot can introduce a song to viewers who'd never otherwise seek it out.

Easy Japanese

@onefiveの新曲「バニララテ」が、10月8日に配信リリースされます。テレビ東京のドラマのエンディングテーマに決定しました。