The Hero Turned Into A Potato And The World Fell To Ruin - Chapter 1: How Did He Turn Into A Potato?

Adventures of a reincarnated Old Man who died saving a kid who was about to get hit by a Truck. Reborn as the son of Duke DragonHeart, AshBorn being a unique individual with Dragonblood and elf blood in his veins he spends his childhood training with dragons and spirits of the world tree goes out into the world to adventure and climb the tower, traveling to different planets,learning the secrets of the universe as he fights an evil unknown enemy, in a perfect way of course

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

In the Toaru Kagaku no Choudenjihou (Railgun) SS series:

Set in Liberal Arts City between September 3rd to 10th, Academy City is having an exchange program with the rest of the world that allows some students to travel for this week to other places, and some students are allowed into Academy City during this time.

V.2 – Shopping Mall Demonstration

Setin Russia where Misaka Mikoto takes part in a demonstration things don’t pan as scheduled as Mikoto meets the mysterious New Light.

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The story was released in parts on limited edition DVDs and Blu-rays of the Toaru Majutsu no Index anime. The story consists of eight parts, and can easily equate to a regular Index novel in length.

“Rishe Ilmgard Wertsner! I’m breaking off my engagement with you!” “Okay, I understand.” “Huh.” The Duke’s daughter, Rishe left the evening party without delay. In fact, for Rishe, this engagement has been terminated for the seventh time. That’s where her new life starts, after having enjoyed the way of life of a pharmacist and a dressed up knight, she lost her life at the age of 20 and has gone back to the scene where her engagement was broken off. Normally, this could have broken Rishe’s heart, but her mentality became strong. Her past six lives have been busy and fulfilling, she wants to live longer this time around. If possible, she wants to live a life of leisure and squander money… To commence her 7th life, Rishe has set up such a diagonal goal. However, in this life, she will be married to the Crown Prince of a militant nation, who killed her in her past life. …It’s probably better. It doesn’t matter if it’s a former rival country. In her seventh lifetime, she’ll enjoy loafing off at a castle!! Against all her determination, she inadvertently demonstrated the skills she had cultivated in her past lives and garnered attention as a brilliant Crown Princess.