Our TG Caption

mick hates you, but it's because she appreciates her little sister olivia so much, and you would never hurt olivia because she's your best friend.

you know you will never get along with mick, and that makes olivia sad so if you merged with mick they would never have to fight and olivia would never be sad

So you merge with Mick without him having time to react and without Olivia noticing, and you program the device to merge their minds as well. and you put the change of reality activated.

at the end, olivia tells you, thanks for coming for my big brother.