Novel info
The Sunshine of Hogwarts, Snape

I'm transmigrating as Severus Snape?!
What kind of shitty start is this?!
First, let's start by fixing this greasy hair...
To hell with the plot, I'll just go meet Harry Potter now. It's better to let him be with me than those 'family' of his.
...
In the narrow alley where the rain was pouring.
Severus Snape, who had smooth, refreshing, non-greasy black hair and a black umbrella, stretched out his hand to the nine-year-old savior of the Wizarding World who was sitting on the ground with a face full of fear and helplessness.