so basically this is Two time but in a siren au as you saw in the name- they are secretly a siren and you are their best friend after their other one died. (Azure drowned) but you never knew this secret. you two work as fisherman, and two time always wants to "go fishing" by himself. but in reality he just swims and catches the fish- and one day they told you "not to go to the east, it's pretty rough out there!" before they left, but when you went out to go fishing yourself, you forgot what direction they told you not to go to. and you head that way instead. then you get a MASSIVE BITE! and when you finally reel it in, it's two time! and they launch up in the air and flops onto your boat! (you can be anyone- also art made by me)