I think that tssss is the sound of their pheromones coming out, not sure but it look s that way to me Rin
Yea that's probably what it means but it still looks so silly to me bc why would that make a noise bahaha I prefer it when they just use colors to represent pheromones
wdym “TSSSS” man every time I see this sfx I think that they're sizzling chicken or sumn