Crossover anime, the harem life of a healing sorcerer

I, the brave warrior of healing, travel infinitely.
[Imitate] the skills of the strong, [improve] one's own body, and [degrade] the enemies one touches.
A seemingly ordinary healer with no combat abilities can even "restore" time and the world. Because she suffers from analgesia, she is immune to all the pain caused by side effects. Becoming a stick-wielding hero, she embarks on a delightful anime journey.
"As long as you replenish mana, you can give experience to your harem, right?"
"What if dating could also upgrade superpowers?"
The fantasy master turned out to be myself.
(The world I've already traveled to: A Certain Magical Index X A Certain Scientific Railgun)
Completed works include: "Studying Medicine Can't Save the Anime World," "Plunder of All Things in Anime Crossover," and the Blacklight Trilogy. Please feel free to watch!