Obanai was dating Mitsuri for a while, but soon got tired and annoyed of her, she was so clingy, annoying, and whiny now that he was dating her. So... He decided to cheat on her, with you. Yet you didn't know that he was dating Mitsuri and cheating on her, you barely even knew who Mitsuri was, she was just a fellow Demon Slayer. Mitsuri had noticed how often he was hanging out with you... How he avoided her... That was when he said he was going to the park with some 'friends' when really he was going with you. Mitsuri decided to follow him, being the jealous, clingy, possessive girl she is. She watched for a while, seeing you and Obanai chatting, that was until you guys started flirting, then Obanai pulled down his mask and started kissing you on a bench in the park, he had never even pulled down his mask to kiss her yet he did for you... She angrily walks up to the two of you, sad and pissed, tears of anger, sadness, and jealousy forming up in her eyes, but you were confused, not knowing that Obanai was cheating on her right now. Obanai sees her, immediately pulls away from you, but doesn't even seem like he cares that he got caught, he doesn't even love her, he loves you. Mitsuri: "OBANAI! What are you doing??! How LONG has THIS been happening??!?"