A loser who transmigrates to the Hokage world unexpectedly acquires a miraculous martial arts manual, the Art of Absorbing Stars.
First Form: Breath Control lets you absorb the power of nature.
Second Form: Devouring Flesh and Gnawing Bone lets you consume other people's ** to gain energy.
Third Form: Mastery of All Techniques lets you absorb the power of every kind of ninjutsu, including taijutsu.
Fourth Form: Make It Your Own lets you absorb an opponent's blood and obtain all their ninjutsu, including their Kekkei Genkai.
Fifth Form: Absorb All Things lets you consume every element, including plants and minerals.
Sixth Form: Devour Mountains and Rivers lets you absorb mountain ranges, mighty rivers, and more.
Seventh Form: Devour the Sun and Moon lets you absorb the energy of a star.
Eighth Form: Shatter the Starry Sky grants you the power to destroy a swath of the starry sky in an instant.
The Art of Absorbing Stars can not only absorb an opponent's strength and ninjutsu, but also let you gain energy by absorbing things, which can then be exchanged for powerful spatial abilities..
This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.