bllk x fem!reader 𓏲ּ .ᐟ. ' 𝘄𝗵𝗮𝘁 𝗱𝗼 𝘆𝗼𝘂 𝗰𝗼𝗻𝘀𝗶𝗱𝗲𝗿 𝗳𝘂𝗻? ' - in which isagi gets added to karasuno's volleyball groupchat. - ' 𝗳𝘂𝗻, 𝗻𝗮𝘁𝘂𝗿𝗮𝗹 𝗳𝘂𝗻 ! '