The Book of Conquests is a unique item available at Paradise Mall’s Serendipity Comics, introduced in X-Change Life 0.20.7.

Purchasing

The book is not available right away — it only appears after you’ve worked at least once at DynaPill and met at least one of your coworkers. If you’re not able to see the book for purchase, try working and meeting at least once coworker.
When available, the Book of Conquests costs $999.

Capabilities

The Book’s primary function is to track all coworkers you meet.
Upon interacting with a coworker, the Book will automatically register their current gender and last seen date. This means that if you’re having difficulty remembering which coworker is which, or identifying male/female versions of a coworker, the Book of Conquests can help you out.
This tracking system also tracks certain events that occur between you and coworkers, such as your mutual sexual history, conversation topics / interests, NPC sales levels, NPC stats (fitness, intellect, charm, dick size), and images of their male/female forms.
Try clicking on the portrait on a given NPC’s entry to see their alternate form! You may need to meet their alter-ego to unlock the portrait, but once unlocked you can compare the two at any time.

The Book’s secondary function is to help target coworkers for pill-spiking. In particular, the Book allows you to identify an NPC you’d like to target with an X-Change Pill. There is no guarantee your attempt to spike a targeted employee will be successful, but if you’re having difficulty tracking down a specific coworker, this might be worth an attempt! Your chance of success varies depending on the NPC’s Intellect stat, so if you’re finding an NPC difficult to hit, try raising your INT. A targeted coworker will be indicated with the 🎯 symbol.

The Book’s final function is to help interact with specific coworkers. You can both set a limited number of NPC trackers (up to three, indicated by the ,, or symbols), allowing you to remember who is who at all times, and automatically find an NPC for a conversation. Note that successive conversation targets will require action points, but the first one is available each day for free.

Conquest Events

♂️: You have had sex with this coworker’s male form.
♀️: You have had sex with this coworker’s female form.
💊: You have spiked this coworker with a variety of X-Change Pink and witnessed their female form. Note that only coworkers who are male by default can receive this event; coworkers with a base gender of Female are unable to be spiked with X-Change.
💦: You have received a blowjob from this coworker’s female form.
🍆: You have given a blowjob to this coworker’s male form.
👀: You have witnessed this coworker either masturbating or having sex around the office.

Coworker Interests

♀️: This coworker is interested in more traditionally feminine pursuits, at least when they’re a woman.
🤓: This coworker likes nerdier hobbies, such as sci-fi/fantasy or RPG’s.
👟: This coworker enjoys athletic pursuits. They may not be good at them, but they like them!
🫶: This coworker is a kind person, and at least claims to enjoy helping others outside of work.
🛍️: This coworker enjoys shopping and prefers conversation topics related to consumerism.
❓: This coworker’s interests remain unknown. Ask them about themselves to learn more!