Thankfully, the spirit who reincarnated me modified my core with a rune of power. Now, each time I ascend to a higher level, I can add a new rune, enhancing my strength. But this gift was given with a condition; if I don’t climb and conquer the Towers of Acalia, this new world will fall into ruin. Plenty of obstacles stand in my way: raging spirit beasts, tower summoned monsters, rival cultivators. But by bonding myself to gorgeous women warriors, I can ascend and grow strong enough to take on the seven towers. Gods help anyone who stands in my way.

Contains volumes one and two of Reincarnated as a Familiar. A young teacher finds herself reborn with only fuzzy, damaged memories of her past life. Even worse, she's stuck in the body of a cat and can't remember her own name. Summoned by a young mage girl named Lesti, she takes up the name Astria and becomes the girl's familiar.

After failing to save the enslaved magical creatures, Lesti and Astria redouble their training efforts. Now, joined by Aurelia and Fang, they continue to unlock new ways of using magic. However, a critical challenge lies just around the corner: the spring tournament. Lesti will have to win if she is to have any chance of taking the lordship of her homeland. At the same time, Astria spots a girl with unique powers at the academy. But she runs away screaming before she can even learn her name. 

A certain college girl who's loved books ever since she was a little girl dies in an accident and is reborn in another world she knows nothing about. She is now Myne, the sickly five-year-old daughter of a poor soldier. To make things worse, the world she's been reborn in has a very low literacy rate and books mostly don't exist. She'd have to pay an enormous amount of money to buy one.

Naofumi Iwatani, an uncharismatic Otaku who spends his days on games and manga, suddenly finds himself summoned to a parallel universe! He discovers he is one of four heroes equipped with legendary weapons and tasked with saving the world from its prophesied destruction. As the Shield Hero, the weakest of the heroes, all is not as it seems. Naofumi is soon alone, penniless, and betrayed. With no one to turn to, and nowhere to run, he is left with only his shield. Now, Naofumi must rise to become the legendary Shield Hero and save the world!