Ecchi

Goodbye! Isekai Tensei summary:
Yuuya Kamigasaki is a normal, 17-year-old high school student. But suddenly, a princess who calls herself Angelia Eight Gransia appears before him from another world.

Kishuku Gakkou no Juliet summary:
"To Love, or not to Love" Juliet Percia and Inudzuka Romeo are archenemies. They lead two high-school dormitories from to two rivalling countries. Both factions are dead set on defeating the other to gain control over the island they have to share. Beneath the feuding exterior, however, Percia and Inudzuka long for love and peace for their budding relationship...

Shinju no Nectar summary:
Sakra, the last surviving princess of a fallen kingdom, is being hunted down for the power of Ambrosia she possesses - the ability to grant divine strength, but only to a human. With no human companion, she decides to summon one from another world in a desperate attempt to find a knight to protect her, but the man who answers her call is less than what she had hoped for.

Origin summary:
The year is AD 2048. Japan is connected to the Eurasian continent by a transcontinental railroad. The capital, Tokyo, has become a crucible of criminals and terrorists. And so, in the metropolitan darkness a mysterious presence attacks and slaughters people, unnoticed, night after night... Just what are these "things that are not human" living in hiding in the human world? And just who is this "Origin" person who faces them?

Futoku no Guild summary:
Kikuru Madan, a monster hunter with excellent performance, because of his particular job in the forest, He decided to quit his job because of fear wasting his own youth. the reason he want to quit because one of his friend married.

NEET dakedo HELLO WORK ni ittara isekai ni tsuretekareta summary:

For a long time, humans were living in fear of the Demon Lord’s dreadful menace.
However, at long last, a hero, who could successfully draw out the holy blade emerged and defeated the Demon Lord. Finally, the world will go back to its peaceful state once again…

Or so everyone thought.

Beings that create and control monsters and demons, beings that build and reign over malicious labyrinths, the chosen individuals to possess an overwhelming Unique Skill… They are the Demon Lords.

Demon Lords entice people to come to the labyrinth they’ve built and eat the people’s despair as their nourishment.

However, Creation Demon Lord Procell has decided that he will obtain people’s hopes and not their despair as nourishment, and built a happy town instead of a malicious labyrinth to collect human beings.

High school student Atami Kusatsu on his way to a rural onsen, meets with a tragic accident along the way and dies, but he's reincarnated as an onsen in a fantasy universe. In this world, the liquefied Atami turns out to have remarkable physical and magical healing properties, and he soon finds himself being regularly visited by beautiful elven adventurer Laticia, large-breasted priestess Kumu, and petite village chieftess Chichiku.

A young man, Naoe Tomoaki, works as a consultant at a popular Seitai therapy clinic. He is in charge of the treatment of a woman on her diet course. But the woman is an elf from a different world with sharp ears and a bow! Why are the elves, who should be slender, getting fat? And will her diet succeed!?