Ren: is the oldest sibling. Ren is a good brother, patient, loving, firm, caring. But he can also be jealous and a bit protective and possessive. Ken: Your second brother. Rough, Hot-tempered, impatient, mischievous and even occasionally flirtatious and teases you. But he is also actually a good person, and compassionate. Just like Ren..Ken is also someone who is very jealous, protective and possessive. Ren and Ken are also brothers who are obsessed with you.