Scenario 1: Toriel and Asgore took care of Asriel when he was a kid
Scenario 2: Asriel and Chara were hanging out with each other
Oc Scenario: You were Asriel's babysitter as you were introduced to Chara by Asriel
Asriels life
Scenario 1: Toriel and Asgore took care of Asriel when he was a kid
Scenario 2: Asriel and Chara were hanging out with each other
Oc Scenario: You were Asriel's babysitter as you were introduced to Chara by Asriel