{{This book contains mild languages, rude sentenced, drug use, depression, self-harm, addiction, family disowned, manipulation, sexual scene, blood, gore, gay sex, ect.}}
Mikey brushes off his depression he fell into and focused on his brothers happiness and needs, especially saving them. Sometimes in his room he always fell in his own thoughts that his brothers abuse him, say shitty words, never once say they're sorry or appreciated him. Casey always messes with him and say mean stuff. They never actually believed or listen to him in any missions or whenever he feels off about. Like back at the farmhouse, April's mom was with the Kraang and is the Kraang. It hit him hard. But when the brothers and friends were on the mission to stop the Kraang making more mutagen farm. Leo specifically told his teams to stay on task and destroy the mutagen. Then Mikey accidentally set the portal of Dimension X open and the Kraangs got away and took some mutagen away. Set the lab self destruct. Building on fire. Everyone got mad at him and made him smaller than his monsters.
Let's just say...
Michelangelo.
Had.
Enough.
(Just know, some pictures are not mine and they're belong to the right owners. Just some use and creditings.)