The Osananajimi to wa Rabukome ni Naranai TV anime has received another teaser visual and cast announcement. This fifth teaser visual features the character Runa Tsukimi, who is voiced by Sae Hiratsuka and is like a younger sister.

Osananajimi to wa Rabukome ni Naranai is set to premiere in 2026. The Tezuka Productions-produced anime is based on the childhood friend-themed romantic comedy manga by Shinya Misu. The initial premise sees the teenage protagonist grappling with his attraction towards his two childhood friends.

©三簾真也・講談社／幼馴染とラブコメになりたい製作委員会

The manga started serialization on Kodansha’s Magazine Pocket in 2022 and has 17 volumes as of September 2025.

Source: Osananajimi to wa Rabukome ni Naranai anime website (via Comic Natalie)