Read manga: Ai No Dna

manga
Other name: 愛のDNA
Artists: Shimada Hisami
Status: completed
Updated at: Aug 25, 2019
Summary:

Ever since he was young, Miharu has suffered from phantom pains. When his divorced parents decide to reunite after 15 years of separation, he discovers the exact reason why: his younger brother, Natsu. Apparently, he and his brother are astrological twins. Miharu feels Natsu's pain, but... Natsu doesn't feel Miharu's? That's just not fair!