たぶん

"たぶん" (Tabun, "maybe") is YOASOBI at their most restrained, and the restraint is the point. Where their hits sprint, this one settles into a mid-tempo groove with a soft, rounded bassline and clean electric guitar figures that feel almost city-pop adjacent — a nighttime apartment sound rather than a stadium sound. The song narrates a breakup in which nobody did anything wrong; the couple simply stopped fitting, and the title's shrug ("maybe it's nobody's fault") is the entire emotional thesis. Ikura sings it without melodrama, letting small conversational details carry the weight: the morning after, the unremarkable room, the ordinary light. Her tone here is warmer and lower in the mix than usual, and she resists the temptation to belt until quite late, which makes the eventual lift land as resignation rather than catharsis. The dual-perspective structure — Ayase later paired it with "ハルカ" and the story "たぶん" by Shinano — gives it the quality of two people telling themselves the same lie from opposite sides of a wall. Cultural context: this is the J-pop breakup song stripped of blame, which is a distinctly Japanese register of heartbreak. Ideal for the walk home after you've already agreed it's over and there's nothing left to argue.