[Chapter:23][My rewards(1)]

((Congratulations! You have obtained [Group App : Upgrade].))

"Ok?"

"Well, that's new."

I blinked as I brought up the description of whatever it is I got rather than opening the second mystery box.

. . . . . .

[Group App : Upgrade]

An App which allows the user to 'upgrade' any skill, ability, object, etc… they received as a reward from the Group using Points. The App owner is [Tanaka]. The App owner can allow other members to use the App in return for a 10% additional cost, which the App owner receives.

. . . . . .

"Well, looks like we found the first use of Points.", I muttered to myself as I minimised the windows and went back to the Home Screen. As expected, there it was, a new icon showing an arrow mark pointing up.

Opening it, there were no entries, obviously since I got nothing other than the App itself as a reward from the Group till now.

I guess Cael's blessing won't count huh. Oh well.

"Now where's the share option…ah, here it is."

Opting to share with everyone, all members simultaneously got notifications as they brought their smartphones out.

"11,000 Points to upgrade my Solid Script Magic.", Kaguya-chan muttered softly, "But there's no description of what exactly would be upgraded. The overall power? Energy usage efficiency? Or maybe what I make will become permanent?"

"For me it's 220,000 Points to upgrade my Dark Devil Slayer Magic…so I guess that 20,000 is the 10% tax to Admin-san huh?"

"165,000 Points for 'Thou Shalt Not Die'…well, for a life saving ability, that much isn't too bad."

"6,600 Points to upgrade the 4D pocket…I guess objects take less points to upgrade?"

"Maybe…"

Out of all the girls, Tsunade-chan was the most tear-broken.

"I only have points! Damn it, why can't I upgrade Points!? I got the Points from the Group didn't I…!?"

"No, well, that makes no sense after all…"

I shake my head as I swipe the app window away and go back to the rewards window.

"Now, for the second Gift Box…"

The girls fall silent and their eyes go back to my screen as I tap it open.

((Congratulations! You have obtained [Grimoire of Gluttony].))

Oh? That's…an interesting reward.

"Grimoire of Gluttony?"

"Never heard of it…"

Both Rias-chan and Kuroneko shake their heads in response to the other girls' questioning looks. Kaguya-chan shrugged blankly.

"I don't know either."

To think the three otakus don't know it…I guess they don't read Korean light novels that much huh.

"This one…it's a little special. The description probably won't tell much…"

I opened the description, and as expected, it wasn't much.

. . . . . .

[Grimoire of Gluttony]

An ancient grimoire aiming to gain knowledge with the ability to digest books, magical items, and other inferior grimoires. It comes from an era not recorded by history. The owner can benefit from providing food to Gluttony, however, if neglected, Gluttony might treat its owner as food. The Grimoire has 7 seals, each when unlocked provides an additional ability to Gluttony.

. . . . . .

"A grimoire…it's a book…right?"

"So…it's a book that can eat books, magical items, and other grimoires…books?"

"And if you don't feed it, it might eat you instead…"

Those not in the know of its incredible powers, meaning, everyone but me, looked at each other in confusion.

"It's dangerous…"

"But it also said feeding it might benefit the owner…"

Rias-chan looked at me and said, "Admin-san, the Gremory family library has a lot of useless books. And you can borrow my 4D pocket to keep them all."

"Now that you mention it…", Mikoto-chan looked at the gigantic bag which nearly occupied half the room.

"Those are all books aren't they…?"

"Ara~ Looks like luck is on your side, Admin-san. What a pleasant coincidence."

I shook my head as I lifted my right arm, where I felt an additional 'creature' come into being just a moment ago.

"I don't need too many books. Besides…"

A wave of blue light appeared from my palm, as the symbol of Gluttony appeared on the back of my palm, and a magical 'tongue' of blue light appeared from within my palm.

"Hello, Gluttony."

{…hello, host. It appears you have more knowledge of me than most others do.}

"A talking tongue!"

"Well now…that's a surprise."

"So that's a Grimoire huh…"

Kaguya-chan looked at the surprisingly pretty looking tongue, made of pure mana it siphoned off of me, and asked curiously.

"Can it do tentacle play?"

"…"

{Although I do not know what this 'tentacle play' is…I have the feeling it is very offensive, so no. I won't do 'tentacle play'.}

"Aww, that's too bad."

Kuroneko and Mikoto-chan blushed while Rias-chan and Akron-chan, who had been silent the whole time, laughed. Tsunade-chan and Irene-chan looked confused. As for me, I just gave Kaguya-chan a blank stare before looking at Gluttony.

"Take a lick.", I said as I handed it the book Ajuka-kun had given me before he left.

{Hmm? What a nice fragrance…a surprisingly high-quality book I see. Not inferior to most Grimoires at that…how intriguing…}

The blue magic tongue flicked the book and shook as it spoke further.

{You haven't read it yet, I can tell…but I suggest you do as soon as possible. This book has an indescribable taste to it…so deep, yet tinged with…}

"Alright, enough.", I interrupted it before it could continue, "I don't want to hear a taste commentary on books of all things."

Opening the Upgrade App, I notice the price of upgrading Gluttony.

"5,000 Points? That's…surprisingly cheap."

"It'll probably only release the first seal on it."

Kaguya-chan said, and I agreed with her guess, that's probably what the upgrade will do.

Unfortunately, I was 1,000 Points short of getting my own personal inventory.

Oh well.

"Next gift box…"

Opening the third gift box, I was met with something far more…surprising, to say the least.