MTL - HacKer - ~ Final-027 is really fragile!

In a universe where starships rule supreme and galactic empires clash for dominance, Kallus, a visionary gamer and strategist, finds himself thrust into an extraordinary reality.Awakened aboard the [Obliterator-Class Star Dreadnought], a vessel born from his own imagination but perfected by a Supreme Being, Kallus must rise to command a fleet that could shape the fate of the cosmos.With a ship forged from mythical adamantium and [mithril alloys], powered by a [Transcendent Dark Matter Engine], and armed with weapons capable of annihilating entire fleets, the Obliterator is more than a warship—it’s a legend incarnate. But Kallus is not alone. Alongside him is the Red Empress, an advanced AI infused with a power of creation and knowledge itself, guiding him with missions that unlock untold power and potential.

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.

An old baseball player gets another chance to live the sport he loves, but this time as a system! The son of one of Japan's greatest pitchers has a dream to follow in his father's footsteps and become a great professional, but he has a major problem, lack of talent.Follow the journey of Shun Takahashi, a young baseball player without talent who receives the old baseball player system. Hellish training, legendary skills, impossible missions, good friends, talented rivals, and maybe luck in love. Shun and the system have a complicated relationship, but they both share the same goal, to be the greatest of all time!

It all happened so abruptly. After finally grasping my situation, I found myself in an entirely different world. Looking around, I noticed others in the same predicament… Could this possibly be one of those Hero developments?

Was there a tyrannical Demon Lord needing extermination, or would I be tossed into the maelstrom of war? Whatever it was, I was afraid. I never wanted to be a Hero. I don’t want to harm another…… Ignore the nonsense I was spouting; there was nothing to fret over.

The Demon Lord was slain a thousand years ago, and 800 years had passed since the last war. The nobles didn’t treat us summoned like tr*sh; instead, we were kindly cared for. The Demons have been on good terms with Humans for some time now. Dangers, such as monsters, were being taken care of by the Guild and the Order of Knights. What’s more surprising is the fact that I wasn’t even a hero! Instead, I was unintentionally summoned!

It also turns out that this world was a world in which the three races, the Spirit World’s Magical Races, the Celestial World’s Divine Races, and the Mortal World’s Human Races, are kind neighbors. Here, everyone lives a peaceful and fulfilling life.

In summary, this other world was――at peace.

What’s my plan for the future? For my limited stay here, I will live this world to its fullest; going on a cultural exchange, sightseeing, then, after experiencing the festival that is only held once every ten years, …… I shall safely return home.

However, despite my lust for a peaceful last year before returning, this planet’s heavyweights have begun amassing around me, and……