[HP fan + no heroine + system + summoning + private setting]
"Little proud Nicholas,
The twenty-eight tribes showed their splendor,
The magic bloodline should be passed down to the next generation,
Unexpectedly, he became a mute wizard. "
…
Faced with doubts, Flamel just wanted to say: "Let the doubts be louder!"
Summon Grindelwald, Voldemort...
Hitting people only slaps people in the face, and swearing only exposes shortcomings. This is Flamel's life motto.
Sorry, as the last alchemist, I don't spoil anyone.
No exceptions.
All fancy and messy.