Cold's manga / #multiple couples(15)

2 brothers with their own story. 1st one about younger brother and his classmate, how classmate helped him open up to others, also got really jealous. 2nd about older brother (brocon) and his friend.

Ch 0.1-0.2: "oneshot" boxer vs chief; childhood friends Ch 1-4: plot summary (doctor w/ a heartbreak, pursuit from a kouhai doctor); ch4 is from ex-boyfriend perspective (funny)