Der Werewolf (light novel) vol. 4.
This series gets so much done in such a short time. I swear there's been more plot development in these 4 volumes than some light novels get in 10. For a moment in that final section with Firnir and Shatina I thought the murals were foreshadowing. Surely Gomoviroa won't turn evil and Veight dies putting her down as a finale, right?!
Kokoro Connect (light novel) vol. 4
This might be my favourite volume so far. Just because there was less second-hand embarrassment I think. Reading the afterword... I really hope we get a new character! Not that I don't like the current 5, but I'd be really curious to see how they'd fit in. Pity it won't be until volume 6