I was Caught up in a Hero Summoning, but that World is at Peace - #1482 - 1479 - April Fool's Day Extra C.:

[W- Whaaaaaat!? A- A second daaaaaaay!?]

[……Eh? What’s with you all of a sudden?]

As I was drinking tea with Serious-senpai, she suddenly stood up and started shouting into the void. No, there certainly have been times when she acted out of the ordinary…… but what’s with this situation?

[I- It’s a disaster, Kaito!]

[U- Unnn?]

[April Fool’s Day 2 has begun!]

[……No, I have no clue what you’re talking about at all……]

Why the sudden April Fool’s Day? Heck, why is it even getting a second day? In the first place, today isn’t April Fool’s Day. If we cross-reference it to the Japanese season, today should be around November.

No, well, Serious-senpai seemed to be living in a special space, so the flow of time might be different there……

[Errr, is today April Fool’s Day in Serious-senpai’s world?]

Rather, she lives in a world where April Fool’s Day exists?

[Yeah, technically, it was April Fool’s Day yesterday. And I can only go out on April Fool’s Day…… until now, when the day is over, I would have automatically returned to that room……]

[……Well, it’s not like the day had ended though…… In the first place, didn’t Senpai just arrive here?]

Serious-senpai appeared in my room about 30 minutes ago at most…… at least an hour, give or take. Not even a day has passed.

No, it is possible that time flows differently in the world Serious-senpai came from…… but even in my previous encounters with her so far, it should have normally lasted for about a day, and I don’t remember her disappearing after just a short time.

When I told her about it, Serious-senpai thought for a while, before a surprised expression appeared on her face.

[I- I see, so it’s that…… the Novel Time Rule!?]

[……U- Unnn?]

[Even if time has passed in the real world, the day has not yet passed in the novel. Looking back, up until now, quite a lot of time had passed in each April Fool’s Day chapter, but there’s hardly much time that occurred this time. Therefore, it means that one day has not yet passed yet in the novel!]

[……Errr, what does that mean?]

[The April Fool’s Day 2 will be born.]

[Nope, nothing’s getting born here.]

Somehow, I was still able to force myself to understand the story up to that point, feeling like there was some sort of gap in between the worlds’ time and space. However, no matter how much time and space shifts, it won’t result in the birth of April Fool’s Day 2. The day after April Fool’s Day is usually just April 2.

[Fuuu…… Fufufu…… I see. If I make use of this rule, I can stay in this world even longer!!! IT HAS COME! MY TIME, MY SPRING HAS FINALLY COME! A WORLD OF AN EVER-LASTING APRIL FOOL’S DAY!!!]

[…………………..]

I don’t know what’s going on, but she looked like she was having fun. In any case, her facial expressions change and she acts erratically, so watching her is kinda interesting.

If I get caught up in her pace, I’ll just be in a state of confusion like earlier…… but in the first place, Serious-senpai’s existence itself isn’t something I quite understand, so I suppose it would be more correct not to think too much about it.

As I was thinking about that though, the wall of my room suddenly slid to the side and a black cat costume with a police hat appeared.

[API OPEN UP! Us April Fool’s Day Police won’t let this go any further!]

[The heck are you doing now……]

[Whoa there, I’m ? ? ? (Hatena). I’m not Alice-chan.]

I’ve only said “you” though, so her being that defensive about that is almost like she’s already confessed her identity…… In any case, with Alice’s…… or rather, with ? ? ? ‘s appearance, a surprised expression appeared on Serious-senpai’s face.

[W- What!? You’ve already sniffed me out!?]

[Now, why don’t you obediently go back to your room……]

[Kuh. D- D*mn it…… No. Not yet. My ambitions have still not…… I won’t let things end here…… I won’t give up on the Humanity Seriouslization Plan!!!]

Wait, when did we start talking about ambitions and all that? The development of things is just too much of a roller coaster. Also, what’s that Humanity Seriouslization Plan? Is it like making everyone have a serious face or something like that? Also, where did the April Fool’s Day 2 go?

[……Ah, Ali…… No, ? ? ?. You too want some tea?]

[Ahh, thank you. I’ll have a full heaping of teacakes too please.]

[Yeah. Also, before you do that small skit of yours, slide that wall back in place.]

[Yeeeeees.]

It seems that the overall atmosphere is lax. I mean, due to the overall atmosphere feeling more like a gag, even though there’s talk about ambition to achieve some grand plan and all that, there’s no sense of tension at all.

In the end, without understanding what was going on, Serious-senpai just returned to her seat and the three of us had a cup of tea. After enjoying chatting for a while, Serious-senpai left with ? ? ?.

……So, in the end, what the heck’s April Fool’s Day 2!?

<Afterword>

Serious-senpai (Affection Meter MAX) : [It was a good opportunity to feel new possibilities.]

? ? ? : [In the end though, what’s with that Humanity Seriouslization Plan?]

Serious-senpai (Affection Meter MAX) : [I dunno? I was just going with the flow and said that……]