I just simply want to know - how to get MySQL results to C++ in string (or another similar \"string\" datatype) in a way that would not deform data
From MySQL Reference
mysql_options() should be called after mysql_init() and before mysql_connect() or mysql_real_connect().
So your code should be
mysql_init(&mysql);
mysql_options(&mysql, MYSQL_SET_CHARSET_NAME, "utf8");
mysql_options(&mysql, MYSQL_INIT_COMMAND, "SET NAMES utf8");
mysql_real_connect(&mysql,CTH_SERVER,CTH_USER,CTH_PASSWORD,CTH_DB_IN,0,0,0));