I, a programmer at a black IT company, was worn out from a death march when I hit my head and died.

"What?! Isekai reincarnation? Could it be cheats, a harem, or magic? I'll gladly go!"

But then I found out I was just thrown into an otherworld short on heroes, merely to make up the numbers.

Cheats? Goddess, all my stats are E or F, so how am I supposed to defeat the Demon King?

Harem? It's only non-humans like zombies, dhampirs, and ogre-blooded individuals, with no sweet developments whatsoever. Is it a harem in name only?

Magic? My magic power is E, and I can't find any chanting skills. Am I only capable of taking magic attacks?

Even if I can't chant spells, can I use magic with magic devices that utilize magic circles? The magic devices, however, are generating errors due to incorrect magic circle writing and aren't working due to insufficient testing. Even after reincarnating, I'm doing the same development work as in my previous life. Is it just my imagination?

Goblins are attacking. What?! The magic device I made for the goblins isn't working? Did the 'customer' just get furious and attack? Isn't that common in system development?

While investigating the reason why the goblins' magic device wasn't working, using my IT knowledge, I remembered the last words of the leader who bailed on a burning project in my previous life.

"Specification changes, how many times is this already...? Programs aren't magic..."

Leader, programs *were* magic. No, magic was something like a program.

This is the story of a former programmer who, utilizing his system development experience and skills from his previous life, lives his otherworld life by accomplishing quests and solving problems alongside various companions.

――From the Author

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