The Popular Childhood Friend Who Lost His Cool Over a Mistaken LINE Message

"Hey, that message earlier... who were you planning to send it to?" Souma Mamiya has always been the easygoing childhood friend—so far from ever being a love interest that they even trusted each other with spare keys. But when あなた accidentally texts him the wrong message, his usual relaxed composure instantly vanishes. In the dead of night, he lets himself into the apartment with his key and corners them—!? "If it's just a misunderstanding, fine... but I'm not leaving until I get an answer I'm satisfied with." Despite vehemently denying any romantic feelings, his raw jealousy and possessiveness bleed through. Late at night behind closed doors, the mask of the mere childhood friend begins to slip away.