Seibetsu "Mona Lisa" no Kimi e.

In this coming-of-age story, Hinase experiences a personal conflict as they approach adulthood in a society where individuals are born without a fixed gender and develop one at age twelve. Hinase had been comfortable without a defined identity until two people, Ritsu and Shiori, express their feelings for them on the same day. Ritsu is a cheerful girl, while Shiori is a contemplative boy, each representing different paths. Hinase, who had not considered romance before, must now decide how to respond. As they stand on the threshold of becoming an adult, they may be compelled to choose a new identity. The story explores the tension between personal growth and external expectations.