三人行，必有我师(焉)

成语
明察秋毫 to observe even the smallest things, not to miss a thing
螳螂捕蝉黄雀在后 to pursue small gains while neglecting greater danger (lit. the mantis stalks the cicada unaware of the oriole behind)
千辛万苦 untold hardships, trials and tribulations (lit. a thousand pains and ten thousand sufferings)
( ”pinyin” )
...and that concludes all the chengyu from the Guardian script, although there are probably a few in there I missed. I'm quite pleased with myself for being able to group them by common characters for all but the last three days. Suggestions for what to address next, please?

词汇
其次, secondly; 其实, actually ( ”pinyin” )
https://mandarinbean.com/new-hsk-3-word-list/

Guardian:
夜尊大人，神武盖世，明察秋毫，仙福永享，寿与天齐, Lord Ye Zun, mighty and powerful, perspicacious, may you live in fortune and long life
我是故意放走了赵云澜，好让老板你螳螂捕蝉黄雀在后, I let Zhao Yunlan go on purpose, so as not to let you pursue small gains and neglect greater danger
你以为我千辛万苦地把他留到现在是为了什么, what did you think I went to such pains to keep him for?
其实我第一眼见你的时候，我就喜欢上你了, actually, the first time I laid eyes on you I fell in love with you.

Me:
你真的明察秋毫，我没发现那些小错误。
其实他还在这里。

语法
X + 其中, "among X"
https://resources.allsetlearning.com/chinese/grammar/Expressing_%22within_(it/them)%22_with_%22qizhong%22

词汇
客人, guest; 顾客, customer; 旅客, traveler; 请客, treat someone; 游客, tourist ( pinyin )
https://mandarinbean.com/new-hsk-2-word-list/
(Definitely not in the list but a real word: 刺客, assassin)

Guardian:
他应该也是婚礼现场其中一位宾客, he must also be among the guests attending the wedding
我觉得苦，但是我乐在其中, yeah, it's tough, but I enjoy it
我就知道正义就像是我的客人，虽然它会迟到但是它迟早都会来的, I know justice is like my customers, it may come late but soon or late it always comes.

Me:
你快点把这些雨伞放在哪里，有五条其中四条是你的吧。
在客人前面别这样说了。