The artstyle reminds me of Solo Leveling and it looks like it's because of this : "Look guys, the MC is struggling with his OP superpowers. He's so real and unique!"
Wow, I didn't see that coming, definitely love the surprise.
Anyway,
So green power=certain plants grow.
Red power=desintegrate stuff.
Red+green= make food bigger and fresher.
Green power also works by either not working, working, or making stuff explode then turn into very light cole. What a nice superpower,
bet it's called Handlung der Bequem.
And since he's done worrying about his powers, he now moves into looking for guns. Yes, very nice, nothing beats guns for untrained noobs. Bet recoil doesn't exist in any dictionary in this world.
What? Installing bulletproof door and windows to protect from invasion and cold using OF money? Nah, let's look for guns.
Plot armor is his armor, he just need something to shoot people.
Bet he won't choose Russian designed weapons that's cool with cr** climate and still won't have problems using it because malfunctions like jamming due to the contraction of metal and potential freezing of lubricants, bet the only lubricant he knows is for s**, bet fire power and ignition problems doesn't exist, bet he doesn't know how to clean a bolt carrier group, bet he doesn't know how to pick the right gun oil that won’t congeal, bet he doesn't know he have to keep ammo dry, bet he can't manage cycling issues due to cold-metal contraction. Not that it matters cuz plot armor manage his equipments