Oji Tachi no Hatsukoi Shinan wa Amasugiru (Gentosha RuTiLe Bunko)

[Machine Translation] Mitsuharu lives a peaceful life running a cafe under the watchful eyes of his three handsome childhood friends, known as the "Three Musketeers. But as soon as he sees a customer - Kujo, a high school senior, for the first time in several years, his heart starts to stir. The mimosa courtyard, secret encounters, and high school days of confusion over his feelings for Kujo. "The language of mimosa flowers is either 'friendship' or 'secret love. Which do you think it is? What will you say to Kujo's sweet question?

幼馴染のイケメン三人組、通称“三銃士”に見守られ、カフェを営み平穏に暮らす光春。なのに店に来た客―高校の先輩・九条の姿を数年ぶりに見た途端、心がさざなみ立った。ミモザの中庭、秘密の逢瀬、九条への思いに戸惑う高校時代。「ミモザの花言葉は“友情”もしくは“秘密の恋”。みつは、どっちだと思う?」九条の甘い問いかけに今度は何て答える―。