All You Need Is Kill
The runners were hired by Sojiro Sato to hunt down and kill a traitor Chen Lin Fat (formerly known as Genji Yamamato). A chinese-japabese man who betrayed the yaks and joined the 88s triad. The runners successfuly tracked down the target and eliminated him and all his bodyguards.
Things of Note
Sojiro was introduced as an antagonist in "All You Need Is Love". He is pissed about his sister eloping with a Chinese man under their employ and used this run to assert fear and dominance after the shame his sister brought on the family.