Only Wisdom Awakened - Chapter 271: Crimson Shadow

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?

Set in the world of Naruto, the story follows the emotional journey of Naruto Uzumaki as he makes a life-altering decision to leave the village of Konoha. After fulfilling his promise to Sakura by bringing Sasuke back, Naruto feels a sense of stagnation in the village. No longer finding purpose in staying, and without any immediate threats, he decides to follow in Jiraiya’s footsteps and embark on a journey of self-discovery.This is a romantic and drama novel, it will not concentrat on adventure or fighting.This is an excerpt from one of the chapters:........As they walked, ***** pouted. “Naruto… My hair got wet… Lift me up a little more.”Naruto raised an eyebrow, a strange smile forming on his lips.Kushina narrowed her eyes. “What are you thinking…?!”His grin widened.******* gasped in realization. “No. No, no… Don’t even think about it!”And suddenly, he lowered her to the level of the river, her **** hair spreading over the surface like silk. She screamed, “Naruto… you've soaked me… what am I going to do with you now?”She reached into the water and splashed some at him, saying, “Alright… then take this…”Naruto turned his face away to avoid getting wet, laughing, then looked at her playfully and said, “If you don't stop, I'll throw you completely into the water.”She replied with a challenge, still teasing, “Then do it… and I'll take you with me.”They locked eyes for a moment before bursting into happy laughter. Then Naruto lifted her again and continued walking...........

He rose from abjection and achieved eternity in glory.
He embraced the prettiest beauties and killed the strongest opponents.
He was able to shift the clouds into rain and cover the sky with one hand.
He could overrun the entire world and go anywhere as he pleased.
He pacified wars and held the world in awe.
He was matchless in the world.
However, his hair turned white overnight for his beloved woman and he was on the verge of death.
He was surrounded by enemies who were trying to take his life.
He struggled his way to become mighty and fought for everything he cherished.
For this age, he was the only king of the Dark World.
His name was a byword for might.
As a man living in the world, his only ideal was to pursue brilliance.

- Description from Novelupdates

A mecha otaku is reincarnated into another world as Ernesti Echevalier (Eru). In this world there exist huge humanoid weapons known as Silhouette Knight. Dreaming of piloting those robots, Eru, with childhood friends, Archid Walter and Adeltrud Walter: together they will aim to become a Knight Runner, pilot of Silhoutte Knight.