City of Sin (Yanyu Jiangnan) - Vol 9 Chapter 37

When The Cute Kunoichis Spied on Their Teacher's Secret is a light novel written by Kazuma Kamachi and illustrated by Ryuushi Tajima.

The story takes place in a world where Japan never ended their isolationist phase, and agents from foreign powers are always threatening to steal the country's advanced technology. In order to combat this threat there has been a resurgence of ninjas that use Strategic Martial Arts, techniques that combine cutting-edge modern technology with a traditional foundation of martial arts and ninjutsu. The story follows Souha Sugiyado, a 17-year old ninja instructor and former ninja prodigy who was forced to retire from active duty by the wounds he suffered in his last mission. Souha's four students are all kunoichi who have all gained the rank of Elite Ninja, the highest official rank available to ninja. However, one day two Shogunate ninja approach him with the news that his four students have gone rogue and have stolen a portable modular nuclear reactor, and thus they ask for his help in bringing his students to justice.

A chance to change, to challenge destiny, making dreams a reality, and live a legend! A regular man gains a system that allows him to turn into a fish!

- Description from Novelupdates

A new member joins the adventuring team of a boy swordsman, a female priest, and a female ranger. The new member is a male wizard.As they go on adventures, their bond deepens and they become the best team ever.But Alvin, the boy swordsman, doesn’t know.What Alvin doesn’t know is that behind the scenes, the wizard Shinji, his beloved priestess Milis, and his best friend Renka, a female ranger, are having a physical relationship.The two of them have fallen into pleasure.Only Alvin doesn`t know.This is a netori story.There are scenes other than cuckolding.

[A Slime Monster Evolution LitRPG]Our protagonist was set for what should have been a good life; born as a noble prodigy with a talent for Dimension Magic.Unfortunately, they did not get a chance to live that life of adventure, wonder, and accomplishment as they died an early death.However, a kind(?) grandpa gives our protagonist a choice for the next life; instead of having a generic life starting from zero, why not join one of his experimental reincarnations not yet approved?However, the experiment was a lot... Slimier than expected.What to expect?- Monster evolution and mutation- Traits and skills- Collect-a-Thon- Lots of experimentation- Adventurers and Dungeons- Deception and Disguises- Magic- Lots of slime