Splinter is more of an active father and has better mental health thanks to Ronin!Mike. A combination of having someone else to talk about this + pulling his ass off his room every time he starts to close up.
Mike forces him to be more open, which Splinter is allergic. Donnie and Leo got that from him.
Their relationship is… different. They act a lot like college roommates.
Mike is more open to talk to his problems. Is a Michelangelo constant to be natural therapists.
They’re both on the boat of “not wanting the kids to become child soldiers”. Splints trains them bu showing them the Lou Jitsu movies when they were kids and Mike decided to give them a bit of training when Raph becomes 12, just so they can learn self defense. They got formerly train when they got into more troubles.
Splinter isn’t as small like his canon counterpart. More active exercise and better health.
Leo and Donnie are twins, but neither is the oldest nor the youngest one. They alternate between older/younger depending on the day and on who’s acting more responsible/more chaotic on that day.
Raph is not as mother hen as in canon. Thanks on having two adults being more present on his and his siblings life he’s more allowed for freedom. He stills worry tho, but it’s more bc older sibling than anything else.
Mikey gets babyfied and he both loves it and hates it. On one side he has everyone around his finger, on the other side he hates being treated has a baby. Mike can sympathize with the feeling.
Ronin!Mike acts as an older brother for the kids.
When the guys were younger they thought that Mike was like a second dad for them and they tried to set a date for both Splints and him. It became the most embarrasing moment of their lives and the adults don’t let them leave that down.
Bc of that incident Mike clarified that he was their brother (which is true). The tots never question it a lot, they were like “he’s an adult and a turtle. We’re turtles too, so he must be our dad.” And “the rat is our dad too, so we got two dads”.
Mike is the eldest by over 20 years, but Raph is still the older brother between the kids.
Mike had a power trip with this knowledge.
Mike was 33 when he died in his original universe. But he was returned to his 20s in the Rise verse. He got a young body but with those old man joints pain.
Mike wears a new color of bandana: an amber orange with a gradient to black on the tails of the mask. One of his tails also has three beads, red, blue and purple representing his fallen brothers.
They find out who their eldest brother is, eventually.
Leo is transmasc (female to male). No one knew that Leo was afab until he had his first period, but Leo got used to male pronouns so he stuck with it. (Note: this is the first time that I write a trans character, any help will be useful thanks).
Leosagi happens in the background. Mike’s not surprised.
And that will be all! Feel free to ask questions in my inbox. Whoever sends me a dm will be silenced /j.