In this universe, certain individuals are off-limits when it comes to entering into romantic relationships. Yuki is one such individual as he shares a living space with Keiichirou, who was previously married to Yuki's deceased older sibling. Despite experiencing love at first sight, Yuki has been keeping his feelings a secret as their romantic involvement would be deemed inappropriate. On a particular evening, Keiichirou embraced Yuki and expressed the desire for him to stay with him. However, their already fragile relationship has only worsened since the passing of Yuki's sister.
