Hi, my pick today is the Isekai Shounen Action manga "The Wrong Way to use Healing Magic" based on a novel by Kurokata. The plot is about Usato Ken a high school student that on a rainy day is summoned to another world with two senpais a good-looking guy and a beautiful girl. In the other world, they discover that they were summoned to fight the demon lord and Usato is only an "extra" on the summoning of the two senpais. Unexpectedly Usato discovers that he has a rare magical talent the healing magic.
After that he is forced into the rescue squad by there leader Rose a Healing Magician feared on all the kingdom by her harsh training.

On a harsh rainy day, a high school student without any particular special skills, Usato Ken got dragged into another world summoning with two others; a good-looking guy and a beautiful girl, both of whom he strangely started getting along with just today. As an especially talent-less individual that doesn’t stand out he internally thought that he would be treated as useless. However, the others were unexpectedly kind.
Usato who found hope in another world thought that, but the reality was different. He had a certain magical talent hidden in him and he was forced to fall into hell in the name of “training.”