After fighting for a while with Yuuto, Dante decides to end the fight by delivering a punch to his abdomen to stop him. Yuuto, not seeing the punch coming, receives it and kneels down in pain, only to realize that Dante didn't actually hit him hard; he just stopped him.
Dante, looking at Yuuto on the ground, decides to start using the items from the Devil May Cry world to speed up the recovery and improvement process. Dante pulls out a Purple Orb and hands it to Yuuto. Yuuto doesn't understand why Dante is giving him a Purple Orb, but he accepts it, and as he holds it, the orb merges with him, restoring his demon power, and he even notices an increase in strength. He looks at Dante, who puts his hands back in his pockets and, with a smile, says: "Come." Yuuto charges at Dante again until he gets tired once more.
This time, Dante gives him nothing and says: "Well, now rest." He then turns around, looks at the girls who were watching everything, and says: "Who's next?" The girls glance at each other, and after a moment, Koneko starts walking toward Dante, preparing to fight. Dante sees her and says: "Come." Koneko runs toward Dante and starts trying to hit him with karate, boxing, and wrestling techniques. Seeing that Dante just dodges her strikes, Koneko speeds up, but no blow reaches Dante. Then, she tries to get closer while throwing punches, intending to grab him and apply a hold, but no matter how much strength she uses, she can't move Dante.
Dante looks at her and smiles, telling her: "You know, I don't think you can move me, so why don't you keep hitting? Who knows? Maybe you'll manage to hit me." Koneko stops trying to move Dante and goes back to attempting to hit him until she is exhausted. Dante repeats the same process with Koneko and gives her the Purple Orb so she can regain energy and try to hit him again.
After a while training with everyone and seeing that they are exhausted, Dante takes out a Blue Orb for each of them and hands it to them. Upon receiving the orb, everyone recovers from their fatigue and even seems to have more energy. Dante looks at them and says: "How's that? It's pretty simple, but it works, right?"
Rias looks at him and replies: "Well, it works, but it's really tough to get completely exhausted only to be filled with energy again and then get tired out again."
Dante observes her and responds: "Well, if it were easy, everyone would already be strong, right?"
Rias sighs and says: "Well, whatever you want, it doesn't matter."
Dante looks at her, remembers something, and says: "By the way, Rias, I'm going to stay for a while training you, so I hope you can provide me with a place to sleep and food. Thanks."
Rias watches him and says: "Can't you leave? Why stay?"
Dante smiles at her and replies: "Well, I want to explore this place; it seems very interesting. Plus, like I said, I have some free time for a while."
Rias nods and responds: "Okay, I won't take long. Anything else you want?"
Dante says: "Well, as I said, I want to explore a bit of the place, so some money wouldn't hurt, right?"
Rias sighs and replies: "Okay, I'll get you some money now."
After receiving the money, Dante starts walking through the city of Kuoh and stops at a plaza to buy a strawberry ice cream. After buying it, he stays in the plaza while feeling something. Looking around, he sees two people who seem to be on a date and notices that they are Issei Hyoudou and Yuuma (or Raynare).
After seeing how people start to leave and Yuuma approaches Issei to tell him something, Dante witnesses her stab Issei through the abdomen and then leave. Dante approaches Issei, who is dying.
Dante thinks: At this moment, I should summon Rias, right? But she seems too tired, so I guess I'll help him myself. On the way, we can joke around a bit so he doesn't get killed next time.
Dante, now close to Issei, says: "Hey, what's up, kid? You don't look too good."
Issei looks at Dante and says: "Help me."
Dante observes him and responds: "Okay, don't worry; even if you die, I can help you." He then pulls out a large green star and hands it to Issei. Seeing him recovering quickly, Issei says to Dante: "Thank you."
After a while, Issei sits on a bench next to Dante, and they start talking. Dante, jokingly, says: "You know, kid, someone once told me: 'The bad thing about breasts is that they come attached to a liar.'" He then continues: "So, you should be more careful about who you go out with."
Issei looks at him, analyzes the situation that just happened to him, and soon starts laughing, saying: "The worst part is that it might be true."
Seeing him laugh, Dante offers him some of his ice cream and says: "Well, since we're here, you should know that that girl isn't normal, right?"
Issei replies: "Yeah, she told me something about a Sacred Gear."
Dante explains: "Well, in summary, that's a supernatural artifact that gives you power, but it seems like you don't even have it awakened." He continues: "What do you think? I know someone who needs a bit of help, but you can't keep that attitude from before. I'll teach you to use your artifact and, by the way, change your attitude so you don't get killed so easily, okay?"
Issei looks at him and says: "Okay, as long as I don't get my stomach opened again."
Dante smiles at him, gives him a pat on the back, and says: "Great, kid. Now, tomorrow I'll introduce you to the group."
After a while, they both say goodbye and go their separate ways. Dante decides it's time to return to Kuoh Academy, but first, he stops by a pizzeria and buys a pizza.
Arriving at the academy, when he opens the door to the Occult Club room, he finds the room empty, except for a girl with long white hair wearing a maid outfit. The girl looks at Dante and introduces herself: "Welcome back, Mr. Dante. I am Grayfia Lucifuge."