Schuld & Mikey N. 
Min-Maxing My TRPG Build in Another World: Volume 4 Canto II [EPUB ebook] 

After saving a runaway maiden from a series of mysterious pursuers, Erich and Mika whisk Cecilia away into the sewers of Berylin. As the chase approaches a finale, they uncover a secret like no other: Cecilia is no normal mensch.
Upon finally escaping to Erich’s lodging, the duo of old friends learn that the girl is running from an “unwanted marriage.” Unwilling to cast her aside, they call in for fey and changeling support alike in an attempt to get her out of the capital! The thrilling conclusion to the fourth act of Erich’s min-maxing campaign arrives!