Some minor not necessarily necessary suggestions:
ManaQuest02Repeat, 3 of 5: Consistency-wise "grave" in purple color, as "diary" is yellow and both are mentioned at the end of the dialogue.
QuestMaster_AfterWormFight02, 2 of 3: Eventually multiplayer option "foreign children".
QuestMaster_AfterWormFight06, 3 of 4: Same thing if previous dialogue gets one.
QuestMaster_AfterWormFight07, 1 of 6: Eventually a single player option unless Zhamla means player+bag.
QuestMaster_AfterWormFight08b, 2 of 2: Eventually a multiplayer option stating "...call yourselves Collectors".
Mana03: Here Mana acts suprised about Sizou knowing all those things. She, however, immediately knew Sizou has put the player up to the task and even told him about her favourite food herself. Maybe a slight change to text, showing a slightly different reaction, indicating her knowledge about the player being involved in all this, but without knowing the full extent of that involvement.
Shin02: Maybe a multiplayer option. It's a dialogue for only one player, but he refers to the fight he has seen and in multiplayer he still must have seen several people fight.
Phew, that's all from me for this update, I guess.
Can't wait for the next one. No, actually I can and will wait for the next one since I love the high quality standards. Take your time and make it right!