Spoiler alert:
There are no powerful acid trips, supernatural goats or homemade science babies. Sorry to disappoint.
On a more serious note, here's the rundown of the next 5 chapters (the whole series) for those who may be interested:
Yagi Meiko and Kirara Madoka (their real names) are stalked by a longtime fan of Yagi's, who happens to be a first year at their school. The enthusiastic stalker is introduced as Koko-chan, and she brings an aloof accomplice named Alice with her. Koko-chan, annoyed at Mado-chan's sudden closeness to Yagi, attempts to wedge her way in between their relationship. Mado-chan is unaware of this "master plan" while Yagi is delighted to have new friends after having been a loner for so long.
Koko-chan is shown to be clingy and hyper, which only ends up creating a distance between Yagi and Mado-chan. Eventually, Koko-chan decides to jump the gun and confess to Yagi, who is conflicted because she has never been confessed to (BY A GRILL, NONETHELESS). She decides that she WANTS to consult with Mado-chan, but never ends up finding the courage to tell her about the confession. So yes, Mado-chan is completely in the dark about the whole Koko-chan having feelings for Yagi thing. MEANWHILE, to make things worse, Mado-chan (vaguely aware of her feelings for Yagi) and Yagi make a promise to stay together forever. Yagi has no clue about how gay Mado-chan's proposal is.
FOR SOME REASON, Yagi is inspired by Mado-chan's proposal of staying together forever... and decides to accept Koko-chan's confession. They start going out and Koko-chan wastes no time to subtly rub this in Mado-chan's face. Mado-chan is of course, heartbroken, crushed and greatly confused for pretty obvious reasons. Koko-chan becomes even clingier, forcing Yagi and Mado-chan farther apart than ever. Koko-chan and Yagi go on a date later, where everything reminds Yagi of Mado-chan, but she is STILL unaware of her feelings for Mado-chan.
Later on in the story, the group of four take a trip to some beach (I skimmed through the last two chapters) and film themselves while they're there. As Yagi and Koko-chan are about to make a broadcast (I think), Mado-chan can no longer keep her feelings in check and breaks down. She reveals that she is in pain (emotionally) because Yagi is going out with Koko-chan. She also confesses her feelings for Yagi, and thought that Yagi had felt the same way. Mado-chan runs off, believing her "temper tantrum" to be a bother to the rest of the group. The remaining three girls go out and try to find Mado-chan, and Koko-chan is the one to find her.
They go home, Yagi chastises herself for not noticing Mado-chan's feelings earlier, and they remain distant. At school, Yagi and Koko-chan are eating lunch alone. Koko-chan tries to throw herself onto Yagi, and unaware of Yagi's feelings for Mado-chan, sparks something within Yagi by telling her to be honest with her feelings. Yagi takes this unintentional advice to heart and runs off to Mado-chan's house ... without even properly breaking up with Koko-chan. After a brief exchange, Mado-chan and Yagi make up with a kiss.
That's basically how it goes.