After parting ways with Le Fay, Tatsuma returned to the training ground on the third underground floor using Transfer Magic.
A day had passed, and Rukia was still in the isolation barrier without moving.
Standing beside Rukia and watching for a while, Tatsuma noticed that her body temperature was continuously dropping, and her aura was constantly fluctuating.
"It seems she's encountered some trouble."
Tatsuma thought for a moment and used Senjutsu and Magic to set up a triple formation next to Rukia. Although he couldn't directly interfere with Rukia's Bankai, providing some external assistance was possible.
With this triple formation in place, Rukia's depleted Reiatsu would be continuously replenished. If she still couldn't acquire Bankai with this, then it could only be said that she was a bit lacking and needed to get stronger.
"I wish you success."
Withdrawing his gaze from Rukia, Tatsuma left the basement and returned to his room.
"Tatsuma! You're finally back!"
As soon as he pushed open the door, an eager voice sounded in the room.
Looking intently, Asia and Xenovia were sitting on his bed, fiddling with a pile of cards. Both were wearing sheer nightgowns, and under the light, their alluring figures were vaguely visible.
Seeing Tatsuma walk in, Asia let out a gasp, and a blush appeared on her face.
"Tatsuma, good evening."
"Xenovia said she found an interesting board game, do you want to play together?"
"Of course."
Tatsuma came to the bed and sat down, casually picking up a few cards and glancing at them.
[Hypnotic Pocket Watch: After using on a target, you can command them to do anything.]
[Spiked Drink: After use, you get a drink with a white pill added.]
[Strip Show: Take off one piece of clothing, evade enemy card effects, and draw a card.]
"?"
A question mark slowly appeared above Tatsuma's head.
Had he been out of touch with society for too long? When did such board games exist?
"How about it? Isn't it amazing?
Just then, Xenovia's proud voice sounded.
"I asked Rias about it and bought it from a shop that only serves acquaintances."
"Don't look at these cards as ordinary, they are actually made of special materials and have magic engraved inside."
"As long as you inject energy to activate them, these cards actually have real effects."
"That's pretty awesome."
Tatsuma grew a little interested.
Picking up the remaining cards from the deck, he asked while looking through them, "Xenovia is one thing, but Asia, you want to play too?"
Asia replied softly, "Mhm."
Because of the life-saving grace, Asia had always felt favorably towards Tatsuma. Adding to that the constant help she received from him after they started living together, she was already on the verge.
It was precisely because of this that after receiving Xenovia's invitation, Asia immediately agreed.
Taking out the board game from a box nearby, Asia placed it on the bed.
"Re-ready."
"Then I'll go first."
Tatsuma picked up the dice, and conveniently changed the traits to luck-boosting ones, starting with [Good Fortune].
The dice fell, spun around the center of the board, and stopped at six points.
Moving his piece six steps forward on the board, Tatsuma triggered the first event.
[First in Monthly Exam: You achieved an excellent score, ranking first in the monthly exam. Draw two cards.]
"Good luck."
Tatsuma reached out and drew two cards from the deck, using them immediately.
"I activate 'Out of Thin Air' twice, drawing four more cards."
"Eh?"
"Really? Is that true?!"
Xenovia and Asia were stunned, not expecting Tatsuma's luck to be so good.
But just then, Tatsuma completed a new round of drawing cards.
"Activate 'Out of Thin Air', draw two more."
"Activate 'Iron Chain Link', the effect of the next card you two receive will be shared."
"Activate 'Reinforcement Card: Strength Welding', the effect of my next card will be doubled."
"Activate 'Fusion Card', I will fuse two Hypnosis Pocket Watches into a Hypnosis Mobile App."
"Activate Hypnosis Mobile App, you two skip the next two turns."
"Alright, it's my turn again."
Asia: ?
Xenovia: ?
This... this isn't right, is it?
Time passed.
With effort and sweat, Tatsuma achieved victory with absolute superiority, leaving Asia and Xenovia utterly defeated.
A night passed, and Tatsuma, honing his skills on the spot, defeated Asia and Xenovia.
Leaving the two girls to catch up on sleep in the room, Tatsuma walked out and opened his system panel.
[Asia has fallen for you, the trait Harem King has gained an amplification.]
[Xenovia has fallen for you, the trait Harem King has gained an amplification.]
"That's interesting."
Tatsuma stroked his chin thoughtfully.
When he first obtained [Harem King], he had conducted some tests with the girls at school by selling out his looks. From the results, taking a shortcut to the final step couldn't achieve the 'fallen for you' condition.
After that, Tatsuma repeatedly conducted some other tests.
Finally, through the reactions of Rias and the others, he reached a conclusion.
The 'fallen for you' in [Harem King], when viewed as data, was a favorability bar. Only by raising the favorability bar to a certain level could the condition be met and the 'fallen for you' state triggered.
However, before today, Tatsuma had never thought that a board game could also accelerate the progress and trigger the standard.
The women around him were either like Sona and Rias, who achieved the condition first and then gave him their body.
Or they were like his classmates who gave him their body but never triggered the prompt.
This was the first time someone like Asia and Xenovia, who achieved the standard immediately after the act, appeared.
'In a situation where the critical point is reached, can deep interaction accelerate the achievement of the condition?'
After reaching a new conclusion, Tatsuma looked at [Harem King] again.
Including Asia and Xenovia, this trait has currently received seven amplifications, and there are five more times until the upper limit is reached.
If its maxed out, that would be a 500% extra increase in training effect and Charm, which is a very considerable increase for Tatsuma.
However, this matter cannot be rushed and requires time and the right opportunity.