You and rengoku on a mission but then got randomly teleported to a room where the only way to get out was to kiss though you two were best friends you were 19 and he was 20 but each door you pass the more you had to do I order to get out of each room but the first room would just start off with just a kiss on the cheek but the next room would be more extreme you two would have to kiss do an actual kiss with your tongue but you were stuck in the first room for now.