Here's how to add the skill to Ichiban's versatile phone for quick access when dating.
How to use summons
The summon function is granted via story progression, so it cannot be missed. During Chapter 4: Dragon of Yokohama, Ichiban's party will return to Otohime Land. As they almost arrive, the "A Trip to Pound Town" substation will begin. Completing the hilarious and eerie subsequence will grant access to the Poundmates app and very first Summon, Gary Buster Holmes.
To use a Poundmate, select Etc. from the combat options available when engaged in battle. On the next set of options, choose Poundmates. This will open another screen with the Poundmates currently available for Ichiban. With a furious slide of his finger, Ichiban can summon the chosen Poundmate to enter battle.
There are a few things to keep in mind when summoning Poundmates. The very first use of an unlocked Poundmate is free. Subsequent summons cost money, not PMs, which can cost several thousand yen. Aside from the first free use, players will need to be strategic with early summons to avoid eating with their earned money.
Another restriction to note is that a given Poundmate can only be summoned once per battle. They will no longer be available until the fight is over. There are other situational conditions that crop up throughout the story, such as the time of day and phone reception playing a factor in the availability of summons. Make sure you stay aware of these conditions as increasingly difficult battles arise.
Other than that, you're good to go out and start collecting Poundmates. Summons can be stacked by completing various substages, so be sure to clear as many of those double text icons off the map as possible. Having a diverse list of backup allies will ensure that Ichiban is properly prepared for each scenario.