magnum's manga / #Earnest Seme(48)

Twin (Ellen) gets adopted by Marquis with older son (Edwin) due to his believed involvement as a witness to a murder. Later it is revealed that the twin who actually witnessed the murder was Lai, who is being pursued by Prince Hector. Lai suffers from drug-induced amnesia and has trouble remembering his past self, including when he first met the Prince.

Uke has younger siblings 20 years younger than him who live with their grandmother after their parents' passing. Seme was once rejected by uke in high school for being so much smaller than uke