アサギ先輩、幸せになろうよ

At college, there is someone known as the "perfect" guy. Everyone calls him "Asagi-senpai." He is a little older than the other students, as he entered university after some work experience. He is a thoughtful and considerate man, who is kind to everyone, and is beautiful in mind and body. Although he's always nice, he acts a little different from those around him, and his private life is shrouded in mystery. Sachi has never been in love, but she has plenty of sexual partners to keep her busy. She is a self-professed "bitch." She falls in love with Asagi, and begins to feel bored with her sex life. Facing romantic feelings for the first time, she approaches the enigmatic "Asagi-senpai" to express her true feelings… A humble but secretly perverted boy x A bitch in love for the first time. A story about trying to find happiness with someone who has given up on happiness. (Source: DLSite, translated)