Tomodachi no Imouto ga Ore ni Dake Uzai
My Friend's Little Sister Has It in for Me! / My Friend's Little Sister Is Only Annoying to Me / Младшая сестрёнка моего друга пристает лишь ко мне / น้องสาวเพื่อนตัวร้ายกับนายจืดจาง / 友達の妹が俺にだけウザい / My Friend's Sister Annoying Only Me / 친구 여동생이 나한테만 짜증나게 군다 / Adik Perempuan Temanku Hanya Usil Kepadaku / La hermana menor de mi mejor amigo solo es molesta conmigo
A young man who has given up on romance and the usual pleasures of youth wants only one meaningful friend, but his friend's younger sister keeps disrupting his quiet routine. Kohinata Iroha is neither his sister nor his friend; she is an energetic junior who repeatedly turns up in his room uninvited. Iroha sprawls on his bed, teases him, and tries to unsettle him even when he is busy with work. Her behavior is all the more puzzling because she is a popular honor student, known for excellent grades and kindness toward everyone else. Around him, though, she is loud, persistent, and exceptionally familiar—and he cannot understand why she acts this way only with him.