I use Yugioh to battle the multiverse

Katsu wakes up with a slight headache and a soft feeling in his hand, he accidentally squiz it as a moan escape Dark magician girl next to him. He realizes now what he touching and retreats his arm immediately luckily she isn't awake. He looks around seeing him in a large bed with 5 girls surrounding him the two new additions are Akame and Kurome. The two look comfortable sleeping there with him. He doesn't know what happens after his collapse but now he feels better and energetic.

_____________________________________________________________________________

That night

The moment he collapsed Akame and Kurome panic and rush to his location although Akame didn't know medical knowledge, she still knows who to seek help.

Akame and Kurome help carry him back to the camp. Dark magician girl seeing Katsu immediately check his condition luckily he isn't in any serious situation only lack sleep and exhaustion.

Carrying him to bed she transfers her mana to him so he can recover without any side effects when waking

"You are really reckless master" she sighs before looking at the two Esdeath and Leone concerned eyes at Katsu

The two like have telepath they woke up the moment they feel he is in danger. Knowing Kurome and Akame rescue him they whisper among each other and reach an agreement they will share their spot with them.

_____________________________________________________________________________

Back to the present

Luckily, there are no loli police around here or he will definitely be sent to jail if this screen is leak out back at his world.

Stretching his body, silently leaving the place he then comes to the weapons storage packing up all the weapons he needs into his bag. The bag is dimension storage that Dark magician girl upgrade but because she isn't strong enough it only limited to 20 items and it will only take objects that fit inside that bag still it a good product because he won't have to bear the weight of the objects in his back,

He only takes the weapons that are special and if he still has space he can bring some normal weapons for training. After that, he cooks a pot of soup for breakfast. Packing up everything he wakes all of the children up to eat and pick most suit weapons in the weapon storage and started their journey back home.

This time because of too many children Dark magician girl can't use her magic to run faster so they go at normal speed to their destination.

The first danger they meet on the way is Earth dragon. Multiple giant cockroach-like beasts raise from the ground despite their appearances they are not really strong at most average

Dark magic girl creates a pink barrier surrounding the creatures trapping them inside. Katsu pulls Tsukushi holding a gun in front of the group. Despite surviving the forest she is still scared, he can see that by how her hand is shaking when standing in front of these beasts.

He holds Tsukushi shaking hand to adjust the gun aim to the beast's face. Being held by his gentle hand she gains confidence as she fires the first shot in her life. The moment she shot Dark magic girl creates a small hole letting the bullet through the barrier hitting a headshot to the closest beast but it still stands so she fires all the bullets until it dies.

Seeing her successfully kill it he rubs her small head before pulling another one to train he even capture more of these monster to train them. Everyone gets a turn he will instruct them to battle but not completely control them still let them have their battle if they are in danger he will interfere.

Because of his training, it took them a lot longer to go back but this helps them as they gain a lot of experience in battle also learn new techniques that will help them in battle.

When they arrive, Katsu with all the children work together to build a bigger house the boys will be responsible for transferring woods while the girls will cut trees. Katsu will be cutting the shape of the woods into blanks and decorating the house. This task usually takes several months but thanks to the strength boost of Dark magician girl to the children and abdominal strength of the human in this world they only took half a day.

Giving the finishing touch the children look in aw as the first home that they finally have. All of them have a big meal with the Danger beast they have hunted along the way.

Looking at those happy faces he sighs knowing he won't have enough time to spend with them still he will do his best to train them and let them have a happy life at least for the rest of the time that he had left