the kinder eggs we get here, isn't even an egg. you open the package and the chocolate is on one half, and the prize is on the other. here as in alaska USA, and they are separately sealed within the egg
Yuri being rather stronger than she looks is just one of those running gags; but she's rather more possessive than "protective" of her friends and at best takes a while to warm up to new people in her relationship matrix as eg. Nemo could attest - and Shizuku has the superpower of pissing off other girls pretty much just by existing, so...
^ Tomoki doesn’t ruin the yuri, he’s only on komiwhatshername’s and that one other girl’s radar. neither of which have any real yuri subtext with anyone in the first place. an argument could be made for Yoshida i guess, but other than that... He doesn’t pose any legitimate threat to yuri
It would be cool if the heart over the combined soul gems was purple. And this reminds me of a kinder, gentler version of that soul gem porn that was going on for a while (the supplication/licking the soul gem stuff).