"Former Crown Prince Asriel Dreemurr is a kind if awkward and sometimes cocky young man thrust into his long-anticipated role of King after the tragic death of his parents during a human incursion into their Underground realm about Many years ago 

He, however, abdicated almost immediately after a disagreement over the treatment of further human intruders with who else but the only person who would disagree with him--his adopted human sibling, Chara--and exiled himself to the Ruins of the old capital. 

From thereon he swore to care for and protect any humans who might fall into the Underground there, and to the best of his ability he did... Although he could not care for someone who willingly left his grasp, as happened with the next six human children to fall, and now he is in danger of losing yet another one to what he sees as his now cold, merciless sibling, now ruler of the Kingdom of Monsters."

Description by: "Jonathan A.S. Discord: Fluffly boi#3606"