Thanks to Tushua@boneqingqichashugu for providing the cover quack quack quack quack quack
The male protagonist is Dutch Worm.
The heroine is usually a tall and cold-faced lady, but after her transformation, she looks super sweet and loli.
As a cold-faced lady, Clara discovered that she had a strange ability to swim after getting vaccinated one day. She could explode with a hundred thousand volts. But what was embarrassing was that every time she used her ability, she had to transform into a super sweet lolita with a hot body. Everyone wanted to fool around with her. What was even more embarrassing was that in that state, when she opened her mouth, she was always talking about "Pikapi", and no one could understand her! ! !
Little Jiju:...... Well, Clara, why did you become so cute when you shrank a bit!
Clara:? ? ? ? ? ? ? ? Brother, who do you think is cute? ! See if I don't kill you!
An old father who did not want to be named: Girl, who do you want to bet on? Dad, I'll kill him!
Two unnamed twin mutants: Who bullied you, little sister! Let's see if we don't torture him to death!
Little Jiju shivered: How dare I speak. Jpg