One day, in a certain private school with dormitories, the whole school was transported into another world. I, Gaya Kazuhisa, from the 1st Grade of the High School Section, had been bullied for long periods of time. To kill the culprit who had bullied me, I dug a trap, but unexpectedly I killed a monster. From that moment, I evolved into a rare existence that can go against the monsters. At the same day, I saved a girl from Middle School Section 3rd Grade, Shimozono Arisu in the forest from an Orc. When I was working with Arisu to defeat the Orcs, and gradually leveled up, I was forced to make a choice: Should I choose the Summon Magic which is suitable for surviving alone? Or should I choose Magic which is used when battling together with others? 301820
5 Volumes (Ongoing)

It's a pitty so much potential is wasted on an echi manga. Its good enough to not make expendables the characters they meet, thought we've yet to see what will happen to the antagonists. It's totally unnecessary to make the orks rape everything they see ... thought at this point it's so common in these kind of manga it's almost default in these manga. At least the girls do think and he hasn't gone to the harem route immediately. I might even put a higher rating depending on what happens on latter chapters ...
I mean, the mechanics introduced make is quite unique, even though they don't really use it to the full potential time stopping for the whole group when one levels up is a ver nice idea. It would let them communicate in long distances and essentially train weeks in a parallel space. Can't really say they waste that time either except for the first time ... they use it to strategise for battles and use peace of mind spell.