In a world where the development of artificial organs has progressed, Chartau's brother lives hiding from the world. Olga pursued an innovative artificial heart eight years ago at the laboratory. Olga and Nito escape the black speculation and secretly conduct transplant surgery. This manga is about love and life, sacrifice and ego.

Oliver, an adventurer almost in his forties, received a certain mission due to his earnest personality. That mission is to bind a contract with deredere little spirits who have great power?! Thus, the spirits gathered and the new life of Oliver as school principal began!! (Source: Overlap, translated)

Girls in their 4th year of primary school discover what puberty is, and what it changes in their minds, but also for their bodies. *Note: Includes one extra chapter.*

“Higurashi no Naku Koro ni” anthology manga, released by Earth Star Comics.

I was reincarnated into a world where you learn to use magic by reading grimoires. And these magic grimoires' contents are.. You wouldn’t believe it, but they look like manga. The people in this world would normally take about a year to finish reading one grimoire. But for me, it's like reading a manga, which would take me less than an hour. Interpreting and understanding all kinds of grimoires allowed the six-year old me to quickly became the world’s strongest mage. That was also when I met my bride-to-be, also six years old, and we started living a carefree life! (Source: Nico Nico Seiga, translated)

This is one of the stories in Hoshi no Suna Amano Sayaka Tanhenshuu.

Tokimasa is an eccentric yet brilliant high school boy who claims to be aroused by numbers and letters. And yet, a girl actually confessed her feelings to him…!?

A girl that loves to paint left her home and for some reason lives with two polar bears. This is the story of a girl suffering from loneliness and anxiety until she finds the place she belongs.