His brother will only act whiny and MC doesn't like to waist his money, so he's investing that ticket money into buttering up to Toujou because he believes Toujou might grew up to be some big shot
Fair enough, still wild tho imagine your bro and your boyfriend going to aquarium to hang out, I'm surprised toujou went along with it
Toujou wants to earn all the cookies points he can from MC family, he needs to be sure no one will say no when he asks for MC's lil bro in marriage XD (my guess)
Good point hahahaha, well as long as nobody is jealous all is good
Lmao why did he ask toujou to go with him when he could just given it to his lil bro and toujou